K8000越野电动绞盘 G9000越野电动绞盘 N12000专业电动绞盘 N15000工业电动绞盘 H12000工业液压绞盘 H15000工业液压绞盘 K5000P便携式电动绞盘
K8000 越野绞盘 G9000 4WD绞盘 N12000 专业绞盘 N15000 救援绞盘 H12000 工业绞盘 H15000 工业绞盘 K5000P 便携式绞盘

绞盘使用指南:关于各类数值的计算

热度2917票  浏览148次 时间:2014年6月17日 23:12
拓松汽车户外网 -2A1y^~ nN6~5y3S1N

There is a large amount of information that could be needed in order to properly size a winch or hoist.  On this page we will go thru each item of information and you can decide if it is needed for your application:

!eNh4Z,SDu$n0 拓松汽车户外网 - Ph ]_O:C$Ht8zV

1: Do I need a Winch or Hoist

L&Dv|*HEem0 拓松汽车户外网 -i7o_SM@*pa

A winch is for pulling along the ground (up to a 30 degree incline).  拓松汽车户外网 -3Ty,J3\(v/h7r
 
G!R)M,a4[gM0P0A hoist is for pulling at incline from 30 degrees to loads that are free suspended and vertical. 拓松汽车户外网 -J-r_#`+M{)|'o D
 拓松汽车户外网 -&?o@h}.D
There are some situations above the 30 degree rule where a winch can still be used.  An example is if there is some other type mechanism that will hold the load in the case of failure of the winch.  Another example is if your load is dropping into the water.拓松汽车户外网 - E:b/d$Fo;m9W^o$O

V-mmJ3IT}aI0Because a hoist is lifting objects vertically and possibly above a persons head, an extra brake mechanism is needed. Many governing bodies, such as OSHA in the United States, require extra safety features for hoists.  Be sure you check with the governing body for your application to be sure you have what you need.拓松汽车户外网 -dt$cgeZ4t5D8G"_j

$f/@,i#G iCW A02.   What will power the winch? (manual / air / electric / hydraulic)拓松汽车户外网 -IPl*~%fJ
 拓松汽车户外网 -8i,y+VVm6B2oHc
Manual - Hand Crank or Hand Wheel拓松汽车户外网 -'w2l Sc,_2X

!P \!CM)i3s0A hand wheel is preferred over a hand crank in the case of winches with higher load and / or winches that will be used often.  A hand wheel will make lifting the load easier for the operator.  Be sure to see what the gear ratio of the winch you purchase is.  Also, check the amount of force needed to turn the crank of the winch or hoist to the pull the load you need.

~V R)d?/bv0 拓松汽车户外网 -#zNO;`#L#b5w

Pneumatic - Air Powered拓松汽车户外网 -0L-q_/I&x4o{;RN
 
M&v E3h J#mO+YK0Pneumatic motors are expensive and very loud as compared to hydraulic.  However, air compressors are much more available as compared to hydraulic power packs.  Air winches are explosion proof and are suitable for situations where this feature is needed.  Should you decide upon a pneumatic winch or hoist be sure to know what pressure and volume of air is required in order to power the unit you need.  If you do not supply the winch or hoist with the pressure (pounds per square inch) and amount (cubic feet per minute) of air needed, it will still operate, but at reduced line pull and speed.拓松汽车户外网 -s2U|,x^$x

BZC0W,p[ c;Cm0Electric Powered拓松汽车户外网 -3Tq2{H%X&y)wD*C

拓松汽车户外网 -dV#W.Pp q]

Electric power and electric motors are readily available and not costly.  This makes them suitable for a majority of applications.  In additon, you dont need an air compressor or hydraulic power pack.  The downsides are that faster speed and higher line pull units require larger power supply (higher voltages and 3 phase) quite quickly.  Also electric winches and hoists are not explosion proof unless costly explosion proof motors and control boxes are included. When requesting a quote for an electric winch or hoist you must specify the hertz (50 or 60 Hz), volts (220, 400, 440 etc) and phase (1 or 3).

8dVb;t6p:Z1j%a7d$SS0 拓松汽车户外网 -a8AH!w+b

Hydraulic Powered

O$v$UF Q0 拓松汽车户外网 -V%\,HyRU1O

If you have a source for hydraulic power, then hydraulic winches are cost effective and can reach very high line pull and line speed at reasonable cost.  Should you decide upon a hydraulic winch or hoist be sure to know what pressure and volume of oil is required in order to power the unit you need.  If you do not supply the winch or hoist with the pressure and amount of air needed, it will still operate, but at reduced line pull and speed.拓松汽车户外网 -\4d R0?/Jod.G

拓松汽车户外网 -OY(H,xj

3.   Line pull needed (how heavy is maximum load)?**拓松汽车户外网 -(V]sw |!u-Bw*\,G;p
 
| xg.b.U(AR-Y(GZ:o0You must determine how much pull (pounds or KG) that the winch or hoist will need to overcome.  This may not always be easy.  If you are pulling a boat and trailer that has a weight of 5 tons up a ramp that is 30% incline then what capacity winch do you need?  Certainly it will be less than 5 tons. See section 12 below to learn how to compute.
{ x+\ h RuF0 拓松汽车户外网 -RSd H'Kq M3H
Another consideration is if you should multi part the line.  "Multi part" means using a pulley system.  As an example if you 2 part the line then you will double the winch line pull and 1/2 the winches line speed.  A 2 part line runs from the winch drum, thru a pulley at the load and then back to the winch (or near the winch) and secured.  The more pulley used the greater the line pull of the winch but the slower it will operate.拓松汽车户外网 -;S \'J9rP

拓松汽车户外网 -XW? q4Yb!q6`2k

4.   Line speed needed (how fast does the line need to pay in and out)?**

1ac?#n#d5X0

K5i%{ Tx]+W9mb Q0You must determine how fast (the speed of the line or line speed) that the load will be pulled (feet or meters per minute).  You can do so by taking the distance that you need to move the load and dividing by the speed of the winch.  As an example: 100 feet divided by 10 feet per minute = 10 minutes.  Is the time you come up with fast enough?  Or can you reduce speed and use a winch that is less costly?拓松汽车户外网 -3y w V z|r)I

拓松汽车户外网 -S!W{cG`"yj,I

5.   How far do you need to pull the load?**

r+DYK3O$a t0 拓松汽车户外网 -R x4e@ \Q

You must determine how far the load you are pulling or lifting needs to be moved.  (feet or meters)拓松汽车户外网 -1lI@1p r$q
 拓松汽车户外网 -b8N7P/^Qh
6.  What size line (inches or mm) is required for the winch or hoist?**拓松汽车户外网 -/y J%l@!Z+k[ `+R
 拓松汽车户外网 - QoS-e;va,oeI
The agency governing the use of your winch may have a particular safety factor required.  If so, state what that safety factor is and Pacific Marine & Industrial can size the wire to meet it.  If not, then we can recommend a wire size given common safety factors.  Typical safety factors are 4 to 1 and 5 to 1.  As an example, if a wire has a 92 ton breaking load and you want to use a 5:1 safety factor, then the winch you use should have no greater line pull than 18.4 tons.

s_.p9o&{pqJ:M r0 拓松汽车户外网 -OO!u0x[KLXq6rT

** A few comments about items 3 to 6 above:
9s Csb&~0 拓松汽车户外网 -7s7`Yt2~g[3\-_
A winch drum is a cylinder.  When wire is wrapped around that cylinder in many layers (full drum) the winch will operate at higher line speed and lower line pull.  When the winch is at bare drum (no wire on the drum) the winch will operate at slower line speed and higher line pull.  All of the items 3, 4, 5 and 6 as well as the drum size and width are required in order to be sure that the winch or hoist will not go under the desired line pull and line speed for a given application.
}1K&Wht#y0 拓松汽车户外网 -(m&R"f N x&vj*B8k
7.  Is a hook or eye needed at the end of the wire?  Do you want the wire included with the winch?
C]}({X`&{;p0 拓松汽车户外网 -[cyF#q yN'\C0o c
State what is needed for your application.拓松汽车户外网 -I,x)N*Q4TXk)F
 拓松汽车户外网 -du Ce6u#Y
8.  What type of controls are needed for your application?

,h-i8U'h(w#{0 拓松汽车户外网 -;u0U,j!mG}

Control Box: Electric Winches and Hoists

$D d;r!]}2u6C0

VB$|.H(T2H[0Control Pendant: Electric, Hydraulic or Pneumatic
#} u\n` `n0 
G5CIw.N/E)Cz ?0Winch Mounted Controls: Hydraulic or Pneumatic Winches and Hoists
qb'J@!z0 拓松汽车户外网 -b!^%jK7RO9? UU"A
Variable Speed Controls or Start / Stop / Reverse: Electric Only

+|uHQ c0g`A0

0\#J:Ahy-X/Z(l7h0Foot Switch: Electric, Hydraulic or Pneumatic

Dn2WL5e4Q tY%x D T0

K^$Q3SO ^4F\I7eX0Hydraulic and Pneumatic winches have a valve to control the flow of air or hydraulic oil to the winch or hoist.  These valves allow variable speed and reverse direction automatically.  They can be mounted on the winch or they can be in a hand held pendent or foot switch.拓松汽车户外网 -Pa~"IXnc RqkhZ
 拓松汽车户外网 -#m _c*Ih6n*DoZy
Electric winches have much less costly controls that are constant speed and allow the winch to start / stop / reverse.  If you would like variable speed on an electric winch a more costly variable frequency drive must be purchased as part of the control package. 
.^8T#J-d*T0 
]4ui?`-P8Z09.   Are their any special requirements?拓松汽车户外网 - E"F,},Z@\B

R*T3h~/m1p4VP8U0Split drum: some winches have two wires coming off the drum and need a split drum.  A split drum is a flange placed vertically that will separate the 2 wires and not allow them to tangle.
{ kUC h2t0 
e*f1Z@ u0}0Grooved drum: putting a groove in the drum helps the 1st layer of wire wrap onto the drum correctly. 
oM8D4J;t#L2d1]j0 拓松汽车户外网 -Lz$pj?"j
Level wind: a level wind helps all layers of wire wrap onto the drum correctly.拓松汽车户外网 -!L0HSO(FQ6^
 拓松汽车户外网 -4fwYaj2T
Epoxy (marine) top coat: some applications require an epoxy top coat拓松汽车户外网 -.V#Ld+{'|

vj(}~}+~`;N/g0Explosion proof: oil and other industry require explosion proof winches and hoists

AuHQKj5a9r0

t9?b)NB!V"`:D"z k010.   What is the duty cycle? (how many minutes per hour will the unit be used or is there going to be continuous use?
qN/?aAg/]y @n3_9X0 拓松汽车户外网 - Pj1EAEO3k+`$Gz
Most industrial winches are designed for constant duty and can be operated 100% of the time.  Lighter duty winches and hoists have reduced duty cycles.  In some cases as few as 15 minutes per hour or 25%.  Be sure you specify what you duty cycle is and purchase a winch or hoist that will meet it.

\)ktCT:M ] d Aa$Z0

2P/O n6E$VE/g0m011. Fleet Angle拓松汽车户外网 -{!Z}9j(i:L

拓松汽车户外网 -%gB)It}7MB

fleet angle descripton: winches and hoists

Y8oh*V#[#Rr(L7hf0 拓松汽车户外网 -5Qr$QJs@td

fleet angle descripton: winches and hoists拓松汽车户外网 -#E#l%^8T$r$jzK


,L2Z Iih9B8r;v0 拓松汽车户外网 -]xWM0vTOU
To prevent excessive wire rope wear and damage and ensure the safety of operators, a location that permits proper fleet angle is necessary to let the wire rope spool uniformly onto the drum. Proper fleet angle is between 1/2o and 1-1/2o measured as illustrated in the example above.  As a general "rule of thumb", the absolute minimum distance from the winch to a fixed sheave should be equal in feet to the drum length in inches. For example, a 12" wide drum requires a fixed sheave at least 12' feet away for proper spooling. 拓松汽车户外网 -2~ VP3yD ~4x$]3N.f,X

拓松汽车户外网 -y"c.bo.c(@Q

12. Computing Line Pull When Load Travels Up An Incline拓松汽车户外网 - iT0R4pHxl4e
 拓松汽车户外网 -W5b.C?.s4_7iY7I2w7NO
Required Line Pull = W(Gr+Cf)拓松汽车户外网 -V}5pj_3J?
 
OQ!C#?"fL0W= Weight拓松汽车户外网 -1[l:M1e-ms1Da.v
 
\!?F9[4P;[0Gr = Grade Resistance

4g\8Q"g$oWyK R0 拓松汽车户外网 -,xm(Yo1yg*OI

Cf = Coefficient of Friction拓松汽车户外网 -Y7V [%OB#L;T;Y.?2b#|
 
@'i5EE_|4do j2z0As an example: If we are pulling a steel bin on wheels up a 30% cement grade with total weight of 5 tons what line pull winch do we need? 
[#~$w9Kft M0 
f9n)o EH?6hz\&\0Line Pull = 5 Tons x (.288 + .2 to .5) = 2.44 to 3.94 tons.

$a{hra3|1N0

z9@K U8c#v|+k%M0See below tables for values:

_0}CY]?Y+K9l"bv:Q3P0

H/] A7e @E8s0

Coefficient of Friction拓松汽车户外网 -U'Ou!^Y(L-g

.40-.60拓松汽车户外网 -%Ew:_#W'ST\

Steel on Steel

x4Y;hVv0

.40-.60拓松汽车户外网 -f^;n5Ox&x"Y{

Wood on Concrete

M9h"z1XJP0

.30-.70

$X D3j:l@zv2z0

Steel on Concrete拓松汽车户外网 -t6mVr$W!s zt

.02-.05拓松汽车户外网 -yo w.w[.kvX;]z

Load on Wheels

O]8C$TrY$@;A$t{)w2m/@0

.05-.10拓松汽车户外网 -Q'SF4DC(Zg7L1Nf5g

Load on Rollers

RW&|*l ^:O.WwY'hxZ)|0

r/h&A8y]@ [+m2mL0

PE7k7V6aGA5b0

Grade Resistance

/tj8Tx"I J!X}!R0

 

)q+Ek4aEuS6X:\*M&L0

% Grade

OR+ZCXP$M1{0

GR

^VH9B fE7?{ T~0

5

zy AcB8~0

0.05拓松汽车户外网 -:z[]1x8U"B)aq

10

{e w Q0GK{6|0

0.1拓松汽车户外网 -`3E3quQTo

20拓松汽车户外网 -y6] A0V's6r1V?

0.196

`"SwpM0

30

Wb-Ll'[0

0.288

4Zt lf\Yc2[C0

40拓松汽车户外网 -(vjD h"Va

0.372

^ g0zj5Q7P$lr0

50

;dH[ItR$|WT6p1L0

0.448

)?5akS:s};?Q4^KF0

60

2U O.g5ogHyt%l Q0

0.513

~E,Vu7~(|!ks7x0

70拓松汽车户外网 -`3Q8Au e0J%g'Z Q W

0.573

+{fiP3OLz0

80拓松汽车户外网 -5F|K6C+^#b~9W0D

0.624

"x#qU9FT0

90拓松汽车户外网 -]](k+sLr&gB0X#J ar7G

0.669

sJGAAvZmd!a0

100

yE&aI)^I o0

0.701

N y,K1Y;q(q0

200拓松汽车户外网 -?'y?!R4t*x

0.896拓松汽车户外网 -th%@f;F6d

400拓松汽车户外网 - E!W:d(rLR)X

0.97拓松汽车户外网 -4vd*Y%T T-[;bP5b7oz6q

Vertical

x1Cgw8R+C!g1[7C w0

1拓松汽车户外网 -)iZ {&R4^

拓松汽车户外网 -7hwu)M+Mc#o

顶:188 踩:198
对本文中的事件或人物打分:
当前平均分:-0.6 (886次打分)
对本篇资讯内容的质量打分:
当前平均分:-0.31 (856次打分)
【已经有789人表态】
197票
感动
113票
路过
81票
高兴
73票
难过
77票
搞笑
73票
愤怒
87票
无聊
88票
同情
上一篇 下一篇

欣宇时代

编辑推荐

欣宇时代

泥地越野绞盘不可缺

TOSOO汽车户外商城

消防救援绞盘 - Fire & Rescue Winches